Solution
50. cxd5 g2 51. ♚f2 g1=♛+ 52. ♚xg1
The position
This beginner puzzle (rating 935) asks White to move to find the winning idea. It features these themes: Tactics.
It is White to move. Look for the tactic hiding in the position — Tactics. Drag a piece on the board to play your move; the puzzle will tell you if you found the best continuation.
Take 50,000 puzzles anywhere
Get Chess Puzzles Trainer for iPhone and iPad — the same puzzles, offline, with progress tracking and spaced repetition.